I have function that we used since SW 2015 that checked one of field we designated for revision and compared it with revision level in our ERP software. Since we upgraded to SW 2018, function does not work anymore. First I got license key errors, and now that I resolved that, it still does not work. Here is mu function:

Its interesting. I am for many years on the maintenance with Siemens Solid Edge and SW Premium. In August 2017 new Solid Edge ST10 SwDocumentMgr.dll equivalent PropAuto.dll turned into 64-bit and now SolidWorks as well.

I do my ERP coding in MS Access 2016 ProPlus so I had to switched to 64 bit version, modified Declarations etc.